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Finding the Fourth Proportional to 136,967.46, 188,958.81 and 83,243.82

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Solution

The fourth proportional to 136,967.46, 188,958.81 and 83,243.82 is: 114,842.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,967.46 : 188,958.81 = 83,243.82 : x
  2. Step 2: Convert to fraction form
    136,967.46/188,958.81 = 83,243.82/x
  3. Step 3: Cross multiply
    136,967.46x = 188,958.81 × 83,243.82
  4. Step 4: Simplify right side
    136,967.46x = 15,729,653,167.05
  5. Step 5: Solve for x
    x = 15,729,653,167.05/136,967.46
  6. Step 6: Final answer
    x = 114,842.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.